take a pic of the current html with svg magic

screenshotHtml.js

(function(url, inj) {
    inj(url).then(function() {

        html2canvas(document.body).then(function(canvas) {
            document.body.appendChild(canvas);
        });

    })
})('https://html2canvas.hertzen.com/dist/html2canvas.min.js', (src, head = true) => new Promise(function(c, d) {
    var a = document.createElement("script");
    a.src = src;
    a.type = "text/javascript";
    a.onload = c;
    a.onerror = d;
    document[head ? 'head' : 'body'].appendChild(a)
}))